"It's interesting hearing from Bob Katter and what he has to say," Irwin told Sky News on Monday night.

"I've been really blessed to spend a great deal of the past twenty years studying crocodiles and I have to tell you I've never run into Bob Katter in the outback, I've never run into him in Cape York."

But I have run into him in a couple of airport lounges and he has the cleanest hat I have ever seen for a bloke who claims to be from the bush.

Show hosts, fellow Queenslanders (and premiers) Peter Beattie and Campbell Newman had a solid laugh before Irwin pointed out there had been nine croc related deaths in the past 32 years.

"There's very little you can die of less in Queensland than crocodiles," she said.

"In fact, in the same time period, more than 77 people were killed by horses."